"Go in peace," said the king. So Absalom got up and went to Hebron.

2 Samuel 15:8
For your servant made a vow while dwelling in Geshur of Aram, saying: 'If indeed the LORD brings me back to Jerusalem, I will worship the LORD in Hebron.'"

2 Samuel 15:10
Then Absalom sent spies throughout the tribes of Israel with this message: "When you hear the sound of the horn, you are to say, 'Absalom reigns in Hebron!'"

And the king said to him, Go in peace. So he arose, and went to Hebron.